Numerical study on flow and wear characteristics of dense fine particle solid–liquid two-phase flow in centrifugal pump

The solid–liquid two-phase centrifugal pump is one of the core power equipment solid phase material hydraulic transportation, widely used in engineering, petrochemical industry, marine metal mineral exploitation, urban sewage treatment, and other sectors national economy. There a significant increase need to transport dense fine particle slurry industrial production. Under this condition, influence parameters on performance still not clear. In order study flow wear characteristics transported by an open impeller pump, Re-Normalization Group k − ε discrete models Fluent were describe flow. numerical model validated with experimental data pump’s performance. indicates that size concentration have great impeller. blade pressure surface most serious. With size, area expands leading edge upper blade. These results can provide supporting theories for design medium conveying pump.